When can I plant Celosia in Zone 1a

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You will be able to estimate when it's possible to plant celosia by referring to the USDA zone info for Zone 1a.


Planting Calendar for Celosia

Frost tolerance for celosia: Not tolerant of frost.
When you should plant them: After all chance of frost has passed.

You should not plant celosia until after all chance of frost has passed because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant celosia
Possibly ok, but a risky time to plant celosia
Probably not a good time to plant celosia

The earliest that you can plant celosia in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant celosia and expect a good harvest is probably July. Any later than that and your celosia may not have a chance to fully mature. You can get started a few weeks earlier by starting your celosia indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. It might get as low as -60°F during the coldest months of winter.

Always keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 1a and it will vary from year to year. Since half of the time in Zone 1a there is a last frost after June 15 be ready to protect your celosia in the event of one of those late frosts.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in our other planting guides for Zone 1a.